How to find + c without given information

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SUMMARY

The discussion centers on finding the maximum value of the function F(x) defined as F(x) = ∫0x sin(t) dt. The maximum value of F(x) is determined to be 1 + c, where c represents a constant that cancels out in the context of definite integrals. The user clarifies that the constant C does not affect the result due to its cancellation in the definite integral calculation. The final answer, confirmed through a graphing calculator, is 2.

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OK, well this is probably a pretty basic problem. I understand all of it except for one part.

Homework Statement



If F(x)=\int^{x}_{0} sin(t)dt, where x \geq 0, what is the maximum value of F?

Homework Equations



F(x)=\int^{x}_{0} sin(t)dt

The Attempt at a Solution



F(x)=\int^{x}_{0} sin(t)dt = -cos(x) + c
max = 1 + c

How do you find c?

If solving with a graphing calculator: y^{}_{1} = Fnint(sin(t),t,0,x) then the answer is 2; I just don't know how the calculator found the shift.
 
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Actually, the C should not be there, because you have a definite integral :smile: That is, your solution F(x) is actually [-cos(x) + C] - [-cos(0) + C], and the C cancels out.
 
Oh wow, I feel really dumb now XD. I guess pulling an all-nighter isn't the best thing for my brain, but thank you for clearing that up.
 

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